Acetylene-gas generator.



. A. 0. GRANT.

AGBTYLENE GAS GENERATOR.

APPLICATION FILED AUG. 29, 1910.

993,360. Patented May 30,1911.

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ALLAN CHESMAN GRANT, OF ST. GEORGE, NEW BRUNSWICK, CANADA.

ACETYLENE-GAS' GENERATOR.

Specification of Letters Patent.

Patented May 36 1911.

Application filed August 29, 1910. Serial No. 579,434.

T 0 all whom it may concern:

Be it known that I, ALLAN OHESMAN GRANT, of the town of St. George, inthe Province of New Brunswick, Canada, have invented certain new anduseful Improvements in Acetylene-Gas Generators, of which the followingis the specification.

My invention relates to acetylene gas machines, and the object of theinvention is to devise a simple machine in which the feed valves willnot clog through slack adhering to them and in which such valves will bepositively closed to cut off the feed of the carbid.

It consists essentially of an outer tank, an inner casing supportedwithin the tank by suitable hangers depending from the sides of thetank, a tubular neck extending upwardly from the casing to the interiorof which the neck communicates, a carbid holder provided with a conicalbottom depending into the neck, feed valves pivotally secured to theoutside of the carbid chamber in proximity to the depending apex locatedwithin the tubular neck of the inner casing, a toggle joint connectionbetween the pivoted valves and the wall of the tubular neck, a floatlocated in the casing and hangers connecting the toggle joint connectionto the float as hereinafter more particularly explained.

The drawing represents a vertical section of my machine.

A is a tank designed to contain water.

B is an inner casing supported within the tank A by depending hangers B,which are secured to the inside of the wall of the tank A in proximityto the top thereof. The hangers B extend downwardly in an obliquedirection and are suitably secured to the bottom rim of the inner casingB. On referring to the drawing it will be seen that the casing B has anopen bottom.

G is a tubular neck extending upward from the top of the inner casing tothe interior of which it communicates.

D is a carbid receptacle provided with an inverted conical bottom Dextending down and fitting into the tubular neck C.

D are feed openings located in the bottom D in proximity to the apexthereof.

D are castings secured to the bottom D of the carbid receptacle D andprovided with feed openings D registering with the openings D D are lugsforming part of the castings D D are valves pivotally connected to thelugs D by pins D D are brackets secured to the inside of the tubularneck C.

D and D are links pivotally connected together by a pin D and to thevalves D and brackets D by pins D and D respectively.

F is a float located in the receptacle B.

F are link rods secured at their lower ends to the float F and areprovided at their upper ends with forked castings F extending to eachside of the links D and D and through which the pins D also pass.

J is a pipe leading from the neck C through and around the bottom of theeasing B into a supplemental water chamber J.

J is a depending tube having a closed upper end and into which the tubeJ extends above the water level in the chamber J.

I is a pipe leading to the service pipe H. The gas in passing throughthe water in the chamber J is cooled at it passes to the service pipe.

K is a gage rod by which the depth of the carbid in the carbid holder isindicated.

G is a blow out pipe.

G is a branch pipe connecting the blow off pipe with the interior of thetubular neck 0. The tubular pipe G is provided with a closing valve G His a service pipe which is provided with a suitable filter H located atany suitable point in its length. The filter H comprises a tubularcasing filled with felt or any other suit-able filtering material.

H is a drip pipe.

Having described the principal parts involved in my invention I shallbriefly describe the operation of the same.

It will be understood that the casing B and necks 0 form the gasgenerating chamber. As the gas is fed through the service pipe H thepressure in the casing B is necessarily reduced allowing the watercontained in the tank A to rise within the casing B. The water continuesto rise untilit lifts the float F. The lifting of the float F breaks thetoggle joint formed by the links D and D, the float being connected tosuch toggle joint by the link rods F as hereinbefore described. By thismeans the valves D are swung away on the pins D from the openings Dthereby allowing the carbid to feed through the openings D and D intothe generating chamber. It will also be understood that as soon as thegas pressure increases the water contained in the casing B will beforced downward carrying with it the float F. Immediately the water hasleft the float F the full weight of the float will serve to spread thetoggle joint links D and D apart so as to bring them into alinement andthereby swing the valves D into their closed position.

From this description it will be seen that I have devised a very simplemachine in which the feed valves are not liable to become clogged and inwhich no springs or gaskets are employed, which are liable to wear outor otherwise be deleteriously affected.

lVhat I claim as my invention is:

1. In a device of the class described, the combination with a carbidreceptacle having an inverted conical bottom having :teed openings inproximity to the bottom thereof, and a hollow neck supporting the carbidreceptacle, of pivoted valves located in proximity to the feed openings,brackets secured to the inside of the neck, toggle jointed linksconnecting the valves with the brackets, a float and connecting meansbetween the float and toggle jointed links designed to break the jointupon the rising of the float, as and for the purpose specified.

2. In a device of the class described, the combination with the carbidreceptacle having a vertical conical bottom, having feed openingslocated in proximity to the apex thereof, of castings secured to thesaid bottom having feed openings registering with the feed openings insuch bottom,bearing lugs forming part of the castings, valves pivotallyconnected to the lugs, suitably supported brackets, toggle jointed linksbetween the brackets and the valves, a float, and links connecting thefloat with the toggle jointed links designed to break the toggle by theraising of the float, as and for the purpose specified.

ALLAN OHESMAN GRANT. lVitnesses:

CHARLES J OHNSON, W. F. MORIN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, I). G.

